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Finding the Fourth Proportional to 3,751.56, 5,177.20 and 2,072.98

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Solution

The fourth proportional to 3,751.56, 5,177.20 and 2,072.98 is: 2,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.56 : 5,177.20 = 2,072.98 : x
  2. Step 2: Convert to fraction form
    3,751.56/5,177.20 = 2,072.98/x
  3. Step 3: Cross multiply
    3,751.56x = 5,177.20 × 2,072.98
  4. Step 4: Simplify right side
    3,751.56x = 10,732,232.06
  5. Step 5: Solve for x
    x = 10,732,232.06/3,751.56
  6. Step 6: Final answer
    x = 2,860.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.